Dodge/Cummins 5.9 - #4 Injector Tube Failure Could be Bad

This happened to a friend of mine with an 06. He was lucky that his mechanic had warned him of this problem so he had purchased a spare #4 since the part was inexpensive. He broke down while towing his 5r to one of our campouts and called a mobile mechanic and had it changed out and was back on the road within a couple of hrs. The mobile mechanic charged him $200 for changing the part. It's a shame he wasn't capable of changing it himself like you did.